Using Python Virtual Environment in DIAdem

Issue Details

Solution

NI DIAdem & Python Support:

Starting with NI DIAdem 2025Q2, python virtual environments created with venv (and certain versions of virtualenv) are officially supported

Instructions to use python virtual environment in DIAdem:

• Create python virtual environemnt using windows command prompt:
  1. Make sure compatible version of python is installed (For ex: Python version 3.8 or higher)
  2. Right-click the Start charm and type cmd, right-click the Command Prompt tile and select Run as administrator 
  3. Navigate to the DIAdem installation of Python using cd C:\Program Files\NationalInstruments\Shared\Skyline\Python
  4. Run the following command to create a virtual environment (Eg: DIAdem_venv)

     python -m venv DIAdem_venv

  5. Activate the created virtual environment 

     DIAdem_venv\Scripts\activate

  6. Perform any necessary module install using pip (Eg: numpy, pandas, etc.,) in the python virtual environment

     pip install pywin32 numpy pandas

      

  7. Reference screenshot showing the virtual environment creation.

      

     
     
     
     

      

• Linking the python virtual environment to NI DIAdem:
  1. Open NI DIAdem.
  2. Navigate to Settings >> DIAdem Settings >> Script.
  3. Select User-defined under Python Installation
  4. Navigate to the Python virtual environment directory where python.exe is located (e.g.,C:\ProgramFiles\NationalInstruments\Shared\Skyline\Python\DIAdem_venv\Scripts), copy the full path to python.exe, and paste it into DIAdem settings in the Path field.
  5. Restart DIAdem to use the Python virtual environment in scripting.